Hey Mitch...
I generally play the ProV1x, but last year I purchased 4 dozen NXT Tour S balls with an imprint as a gift for my friends attending our annual fall golf outing.
The balls were great ! They performed very well and seemed to fly long and straight. If I was not so hooked on my ProV's I would have absolutely no issues switching to the TourS model. I particularly liked the fact that I could get them in yellow for my fall golf outings when the weather is a little more bleary and the clouds tend to make it more difficult to follow the ball flight.

I haven't tried the NXT Tour S balls yet but I do plan on testing them out this year.

i'm really impressed. it feels longer off the tee and I am happy i can get the NXT S in yellow, a big help playing in grey cloudy days and in the sand

I was playing the PROV1x until i could get the new NXT Tour S in Yellowknife. luckily the pro shop and Canadian TIre started carrying it in the last month.

I prefer it, it's a great upgrade over the old NXT Tour

I picked up a sleeve of NXT Tours and played a couple today. Loved the ball. It worked well in most areas for me today. Still prefer the ProV1 but won't hesitate to tee up a NXT Tour in the future!

I'm a long time X player , but I have tried the new NXT (not the S yet but hopefully can do so soon and will definitely post a review )

I found that this years model felt closer to a tour ball then previous models. It for me felt clicky enough off the driver and longer that made me feel like I could really go after it hard , and sticky enough off the shorter clubs that gave me confidence inside 100 to be able to play a variety of shots and still get good spin and reaction on the greens.

Off the putter it was slightly more clicky than the prov1x ( which I personal like the firmer putting ball ) But it was also plenty soft to allow you to feel like you playing a good quality premium ball.

overall great improvements on the ball and I'm looking forward to hopefully being able to try the S and post some feedback here